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Title: Hyperinsulinemia in polycystic ovary syndrome correlates
with increased cardiovascular risk independent of obesity
Author: K. Mather, et al.
Address: Alberta, Canada
Source: Fertility and Sterility 73: 150-156 (January) 2000
Summary: Researchers studied 57 women with clinically defined polycystic
ovarian syndrome (PCOS) and 45 unselected healthy age-matched controls to assess
the role of insulin resistance, independent of obesity, in determining
cardiovascular risk among women with the PCOS. They studied the relationships
between hyperinsulinemia, composite cardiovascular risk scores, and prevalence of
individual risk factors. Hyperinsulinemic women with PCOS carried more
cardiovascular risk than their normoinsulinemic counterparts, who in turn had
more risk than the control women. In addition to the lipid changes expected with
insulin resistance, there was an excess of LDL cholesterol among the women with
PCOS. Across the range of body mass index, women with PCOS had greater insulin
resistance than controls, suggesting that PCOS itself and body mass index both
contribute to the observed insulin resistance. Researchers concluded that insulin
resistance in PCOS is a determinant of overall cardiovascular risk independent of
obesity. However, the mechanism of this relationship remains uncertain.